In 1922, at the age of two, Petey's distraught parents commit him to the state's insane asylum, unaware that their son is actually suffering from severe cerebral palsy. Bound by his wheelchair and struggling to communicate with the people around him, Petey finds a way to remain kind and generous despite the horrific conditions in his new home. Through the decades, he befriends several caretakers but is heartbroken when each eventually leaves him...